Pelagothuriida, [572], [577], [578]

Pellicle, of Protozoa, [46];

of Flagellates, [109] f., [113];

of Noctiluca, [133];

of Ciliata, [139], [141], [142];

of Coleps, [141], [152];

of Dysteria, [153];

of Vorticella, [157];

of Suctoria, [159];

of tentacles of Suctoria, [161]